xmlns to sharepoint api object - sharepoint

Question

Is it possible to convert the following string to a Sharepoint API object like SPUser or SPUserValueField? (without parsing it)
"<my:Person xmlns:my=\"http://schemas.microsoft.com/office/infopath/2003/myXSD\"><my:DisplayName>devadmin</my:DisplayName><my:AccountId>GLINTT\\devadmin</my:AccountId><my:AccountType>User</my:AccountType></my:Person>"
Thanks,
David Esteves

Answer 1

Yes, the Microsoft.Office.Workflow.Utility assembly has Contact.ToContacts which will deserialize Person XML into an array of Contact instances.
http://msdn.microsoft.com/en-us/library/ms553588
-Oisin

Answer 2

Solved :)
(Just an example)
The following function retrieves the SPUser from person:
protected SPUser GetSPUserFromExtendedPropertiesDelegateTo(string xmnls_node)
{
StringBuilder oBuilder = new StringBuilder();
System.IO.StringWriter oStringWriter = new System.IO.StringWriter(oBuilder);
System.Xml.XmlTextWriter oXmlWriter = new System.Xml.XmlTextWriter(oStringWriter);
oXmlWriter.Formatting = System.Xml.Formatting.Indented;
byte[] byteArray = Encoding.ASCII.GetBytes(xmnls_node);
MemoryStream stream = new MemoryStream(byteArray);
System.IO.Stream s = (Stream)stream;
System.IO.StreamReader _xmlFile = new System.IO.StreamReader(s);
string _content = _xmlFile.ReadToEnd();
System.Xml.XmlDocument _doc = new System.Xml.XmlDocument();
_doc.LoadXml(_content);
System.Xml.XPath.XPathNavigator navigator = _doc.CreateNavigator();
System.Xml.XmlNamespaceManager manager = new System.Xml.XmlNamespaceManager(navigator.NameTable);
manager.AddNamespace("my", "http://schemas.microsoft.com/office/infopath/2003/myXSD");
System.Xml.XmlNode _node = _doc.SelectSingleNode("/my:Person/my:AccountId", manager);
if (_node != null)
{
return this.workflowProperties.Web.EnsureUser(_node.InnerText.ToString());
}
return null;
}